Source : Webster's Revised Unabridged Dictionary (1913)

Simplification \Sim`pli*fi*ca"tion\, n. [Cf. F. simplification.]
   The act of simplifying. --A. Smith.

Source : WordNet®

simplification
     n 1: a explanation that omits superfluous details and reduces
          complexity
     2: elimination of superfluous details
     3: the act of reducing complexity [syn: {reduction}]